Assume Two Threads Share a BankAccount Object with Balance of Zero

question 60

Multiple Choice

Assume two threads share a BankAccount object with balance of zero (0) , and that the BankAccount class provides deposit and withdraw methods and has a ReentrantLock named myLock, as shown below. Thread one deposits $10 ten times and, concurrently, thread two withdraws $10 ten times. Which statement regarding the balance after all thread calls is definitely true? public void deposit(int dollars)
{
MyLock.lock()
Int newBalance = balance + dollars;
System.out.println("depositing") ;
Balance = newBalance;
MyLock.unlock()
}
Public void withdraw(int dollars)
{
MyLock.lock()
Int newBalance = balance - dollars;
System.out.println("withdrawing") ;
Balance = newBalance;
MyLock.unlock()
}

• A) The balance could be zero or positive.
• B) The balance is zero.
• C) The balance could be zero or negative.
• D) The balance is positive.

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Definitions:

Marginal Listening

A poor form of listening where the listener gives minimal attention to the speaker, often leading to misunderstandings or miscommunication.

Active Listening

A technique of listening that involves paying full attention to the speaker, understanding their message, responding appropriately, and remembering the discussion, indicating respect and empathy.

Listening Level

The degree of attention and understanding demonstrated when receiving and processing information auditorily.

Listening

The active process of receiving, interpreting, and responding to verbal and non-verbal messages.